Display panel or screen with a graphical user interface



FIG. 1 is front view of a display panel or screen with a graphical user interface showing our new design; and,

FIG. 2 is a front view of a second embodiment thereof.

The broken line showing of a display panel or screen and the graphical elements in both views is for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a display panel or screen with a graphical user interface, as shown and described. 